I couldn't sent this mail to Joe Fletcher (joe.fletcher_at_metapack.com). The
username was rejected as "unknown" at the metapack mail server. So I dare
to post it here. I hope that he wasn't affected by some dark powers for
posting that :-)
---------- Forwarded message ----------
Date: Thu, 14 Feb 2002 12:35:02 +0100 (MET)
From: Thomas Leitner <tom_at_radar.tu-graz.ac.at>
To: "Fletcher, Joe" <joe.fletcher_at_Metapack.com>
Subject: Re: SUMMARY: Xservers? X Files more like....
Joe,
When did you X-Servers crash? We had a similar incident yesterday. All of
our X servers crashed and all sessions were popped back to the login
screen. We're behind a firewall so I don't think it was some sort of
attack or something.
Maybe it's related to *SOME* "dtlogin" process producing XDMCP broadcasts
at a certain date/time which causes the X-Servers to crash!
Tom
On Thu, 14 Feb 2002, Fletcher, Joe wrote:
> I'm going to put this one to bed. The curious thing from the replies was
> that some other people's X servers crashed
> at approximately the same time. I'm pretty confident there is no link
> between them and any of the systems I know. The only common link I can find
> is that all were running Netscape though not looking at pages from the same
> sites. Considering the other problems Netscape has I'm going to believe it
> is at the root of the problem and some set of circumstances connected to UTC
> provokes the Xserver lockup.
>
> Thanks for feedback from Br Thomas Blinn, Selden Ball, Matt Morris, Robert
> Bumpus, Emmanuel Stamatakis and William Magill.
>
> Joe
>
>
> ----------------------------------------------------------------------------
> ------------------------------------------
>
> Calling Mulder and Scully, this one is definitely wierd. Two workstations,
> one is an Alphastation 500/500 running 5.0A in London and the other is an
> XP1000 running 5.1 in Cambridge. On a number of occasions the displays on
> these workstations have locked up with the X server process running at 100%
> CPU. The strange thing is that the lockup happens simultaneously on the two
> machines. There is no connection of any sort between the two boxes. The 500
> is on a private network behind firewalls and is not externally accessible by
> anything. In /var/adm/syslog.dated.current/user.log on both machines the
> following error appears.
>
> Feb 13 15:12:30 alpha500 syslog: libtt[216518]: ttdt_Xt_input_handler():
> tttk_message_receive(): TT_ERR_NOMP^I
> No ttsession process is running, probably because tt_open() has not been
> called yet.
> If this code is returned from tt_open() it means ttsession could not be
> started, which generally means ToolTalk is not installed on this system.
>
> Anyone got ANY idea (outside of some bizarre quantum tunnelling mechanism)
> how and why these two systems exhibit this connection?
>
>
> MetaPack
> The Lightwell
> 12/16 Laystall Street
> Clerkenwell
> London EC1R 4PF
> Tel: +44 (0) 20 7843 6720
> Fax: +44 (0) 20 7843 6721
> --------------------------------------------------------------------------
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>
>
--
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Dr. Tom Leitner Dept. of Communications
Graz University of Technology,
e-mail : tom_at_radar.tu-graz.ac.at Inffeldgasse 12
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Received on Thu Feb 14 2002 - 11:40:54 NZDT